Optimisation and experimental verification of a dust-removal beater for the electrodes of electrostatic precipitators

Nowak, Andrzej; Wojciech, Stanisław

doi:10.1016/j.compstruc.2004.05.009

Cited by 9 publications

(5 citation statements)

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“…According to this diagram, the maximum amount of this force is 135 KN. So, by applying dynamic force caused by rapping, vibration with high acceleration is expectable on the plates [11,19]; in addition, dynamic stresses resulting from plates vibration are evaluated [20].…”

Section: Stress Analysis Of the Rapping Hammermentioning

confidence: 99%

Fatigue Durability Analysis of Collecting Rapping System in Electrostatic Precipitators under Impact Loading

Neyestanak

Nazari

Imam

et al. 2014

Advances in Materials Science and Engineering

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Due to the importance of collecting rapping system in electrostatic precipitators (ESP) and controlling the relevant damage under impact loading, fatigue durability of this system is analyzed in the present study based on the numerical and experimental results considering fatigue damage growth and vibration acceleration in the collecting system because of the successive impact of rapping hammers. By microscopic examination of the fracture surface of rapping hammer, beach marks obviously show typical fatigue failure in the rapping hammer arm. In addition, the microscopic examination of the cross section of the collecting plates indicates the corrosion voids which cause crack and eventually fatigue failure. The finite element method is applied to determine both the stress and concentration positions of dynamic stress on the rapping system under impact loading. The paper results can be utilized in system optimization and new material selection for the system by evaluating rapping system durability.

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Section: Stress Analysis Of the Rapping Hammermentioning

confidence: 99%

Fatigue Durability Analysis of Collecting Rapping System in Electrostatic Precipitators under Impact Loading

Neyestanak

Nazari

Imam

et al. 2014

Advances in Materials Science and Engineering

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“…These vibrations are caused by an axial impact of a beater on a brushing bar ( Figure 1). The problem of optimization of the beater has been discussed in [6]. Values of normal and tangent accelerations of vibrations at control points are used to evaluate the process of collecting particles and cleaning the electrodes.…”

Section: Introductionmentioning

confidence: 99%

Vibration Analysis of Collecting Electrodes by means of the Hybrid Finite Element Method

Adamiec–Wójcik

Awrejcewicz

Nowak

et al. 2014

Mathematical Problems in Engineering

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The paper presents a hybrid finite element method of shell modeling in order to model collecting electrodes of electrostatic precipitators. The method uses the finite element method to reflect elastic features and the rigid finite element method in order to model mass features of the body. A model of dust removal systems of an electrostatic precipitator is presented. The system consists of two beams which are modeled by means of the rigid finite element method and a system of collecting shells modeled by means of the hybrid finite element method. The paper discusses both the procedure of deriving the equations of motion and the results of numerical simulations carried out in order to analyze vibrations of the whole system. Experimental verification of the model is also presented.

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“…The authors have, for several years, dealt with the modelling and measurement of the vibrations of the electrodes caused by the beater hitting the brushing bar. Paper [10] presents the results of research devoted to optimisation of the shape of the beater. This paper is concerned with modelling of one system of the collecting electrodes ( Fig.…”

Section: Introductionmentioning

confidence: 99%

Comparison of Methods for Modelling Vibrations of Collecting Electrodes in Dry Electrostatic Precipitators

Adamiec–Wójcik¹,

Nowak²,

Wojciech³

2013

Archive of Mechanical Engineering

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Dry electrostatic precipitators (ESPs) are widely used for purification of exhaust gases in industrial applications. Maintenance of their high efficiency depends primarily on periodical cleaning of the collecting electrodes (CEs). Dust removal (regeneration of CEs) is realized by inducing periodical vibrations of the electrodes. The paper presents results of vibration modelling of a system of CEs; the results were obtained by means of the finite element method, the hybrid finite element method, the finite strip method and a model formulated using Abaqus. Numerical results are compared with those obtained from experimental measurements. Conclusions concerning numerical effectiveness and exactness of the methods are formulated and reasons for differences are discussed.

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Optimisation and experimental verification of a dust-removal beater for the electrodes of electrostatic precipitators

Cited by 9 publications

References 1 publication

Fatigue Durability Analysis of Collecting Rapping System in Electrostatic Precipitators under Impact Loading

Fatigue Durability Analysis of Collecting Rapping System in Electrostatic Precipitators under Impact Loading

Vibration Analysis of Collecting Electrodes by means of the Hybrid Finite Element Method

Comparison of Methods for Modelling Vibrations of Collecting Electrodes in Dry Electrostatic Precipitators

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